60 Cows, Pigs And Horses. There Four Times As Many Cows And Pigs. How Many Horse?

Let c be the number of cows
Let h be the number of horses
Let p be the number of pigs
c+h+p=60 <=Equation 1
--Wait, I don't understand. Do you mean there are four times as many cows AS pigs? Or four times as many cows and pigs as horses?
C+p=4h <=Equation 2
Subsitute equation 2 for (Is that the right word?) equation 1
4h+h=60
5h=60
h=12